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Electron-Phonon Coupling and the Metalization of Solid Helium at Terapascal Pressures

Overview of attention for article published in Physical Review Letters, February 2014
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (88th percentile)
  • Above-average Attention Score compared to outputs of the same age and source (63rd percentile)

Mentioned by

blogs
1 blog
twitter
6 tweeters

Citations

dimensions_citation
36 Dimensions

Readers on

mendeley
45 Mendeley
Title
Electron-Phonon Coupling and the Metalization of Solid Helium at Terapascal Pressures
Published in
Physical Review Letters, February 2014
DOI 10.1103/physrevlett.112.055504
Pubmed ID
Authors

Bartomeu Monserrat, N. D. Drummond, Chris J. Pickard, R. J. Needs

Abstract

Solid He is studied in the pressure and temperature ranges 1-40 TPa and 0-10 000 K using first-principles methods. Anharmonic vibrational properties are calculated within a self-consistent field framework, including the internal and free energies, density-pressure relation, stress tensor, thermal expansion, and the electron-phonon coupling renormalization of the electronic band gap. We find that an accurate description of electron-phonon coupling requires us to use a nonperturbative approach. The metallization pressure of 32.9 TPa at 0 K is larger than found previously. The vibrational effects are large; for example, at P=30  TPa the band gap is increased by 2.8 eV by electron-phonon coupling and a further 0.1 eV by thermal expansion compared to the static value. The implications of the calculated metallization pressure for the cooling of white dwarfs are discussed.

Twitter Demographics

The data shown below were collected from the profiles of 6 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 45 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Japan 2 4%
United Kingdom 2 4%
France 1 2%
Switzerland 1 2%
Germany 1 2%
China 1 2%
Spain 1 2%
United States 1 2%
Unknown 35 78%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 12 27%
Researcher 10 22%
Professor > Associate Professor 6 13%
Professor 4 9%
Student > Postgraduate 4 9%
Other 9 20%
Readers by discipline Count As %
Physics and Astronomy 32 71%
Materials Science 6 13%
Unspecified 3 7%
Chemistry 3 7%
Agricultural and Biological Sciences 1 2%
Other 0 0%

Attention Score in Context

This research output has an Altmetric Attention Score of 10. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 July 2018.
All research outputs
#1,250,875
of 11,857,577 outputs
Outputs from Physical Review Letters
#4,521
of 21,618 outputs
Outputs of similar age
#18,719
of 162,553 outputs
Outputs of similar age from Physical Review Letters
#95
of 262 outputs
Altmetric has tracked 11,857,577 research outputs across all sources so far. Compared to these this one has done well and is in the 89th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 21,618 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 11.6. This one has done well, scoring higher than 79% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 162,553 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 88% of its contemporaries.
We're also able to compare this research output to 262 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 63% of its contemporaries.